Cohesin-mediated cohesion between sister chromatids is established by a two-step process:

1.Loading and unloading of cohesins

2. Stabilization of cohesins

TLS Online TPP Program

#Id: 1846

#Unit 3. Fundamental Processes

Molecular genetic techniques are used to make a cDNA encoding a recombinant protein to which is fused a short sequence of amino acids called an epitope tagging.

TLS Online TPP Program

#Id: 2050

#Unit 8. Inheritance Biology

X-Linked Dominant Trait

a. Both males and females are usually affected; often, more females than males are affected.

b. Does not skip generations. Affected sons must have an affected mother; affected daughters must have either an affected mother or an affected father.

c. Affected fathers pass the trait to all their daughters.

d. Affected mothers (if heterozygous) pass the trait to half of their sons and half of their daughters.

TLS Online TPP Program

#Id: 5648

#Unit 7. System Physiology – Animal

Retinal ganglion cells contain melanopsin.

TLS Online TPP Program

#Id: 9572

#Unit 11. Evolution and Behavior

The Forces of Evolution

Mutation, 

Genetic drift

Gene flow or migration

Selection

TLS Online TPP Program

#Id: 7023

#Unit 5. Developmental Biology

The daughter cell attached to the hub is maintained as a stem cell, whereas the cell that is not touching the hub becomes a gonialblast, a committed progenitor cell that will divide to become the precursors of the sperm cells.